一种实用的恒星分类法是基于测得的光谱类型序列。
A convenient classification of stars is based upon the observed sequence of spectral types.
一个完整的MK系统代号包含光谱类型和光度型两部分——例如,太阳属于G 2 V类恒星。
A complete MK designation includes both spectral type and luminosity class -for instance, the sun is a G2V.
这个已被授予专利的新的类型辐射光谱仪设备首次生产将很快开始,提前也导致了科瓦利斯的分拆公司创造阿维森纳仪器的进步,研究者说, 对这些成千上万设备的建成最终可能成为全球性的市场。
The market for these instruments may ultimately be global, and thousands of them could be built, researchers say.
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